# -*- coding: utf-8 -*-
"""
	Flaskr
	~~~~~~

	A microblog example application written as Flask tutorial with
	Flask and sqlite3.

	:copyright: (c) 2014 by Armin Ronacher.
	:license: BSD, see LICENSE for more details.
"""
####################################################
# library import and object instance.              #
# application configration                         #
####################################################
# import
import os
from sqlite3 import dbapi2 as sqlite3
from flask import Flask, request, session, g, redirect, url_for, abort, render_template, flash
from sys import path

# create our little application :)
app = Flask(__name__)
DATABASE = '/tmp/flaskr.db'

# Load default config and override config from an environment variable
app.config.update(dict(
	DATABASE=os.path.join(app.root_path, 'flaskr.db'),
	DEBUG=True,
	SECRET_KEY='development key',
	USERNAME='admin',
	PASSWORD='default'
))
app.config.from_envvar('FLASKR_SETTINGS', silent=True)


####################################################
# method                                           #
####################################################
def connect_db():
	"""Connects to the specific database."""
	rv = sqlite3.connect(app.config['DATABASE'])
	rv.row_factory = sqlite3.Row
	return rv


def init_db():
	"""Creates the database tables."""
	with app.app_context():
		db = get_db()
		with app.open_resource('schema_sqlite.sql', mode='r') as f:
			db.cursor().executescript(f.read())
		db.commit()


def get_db():
	"""Opens a new database connection if there is none yet for the
	current application context.
	"""
	if not hasattr(g, 'sqlite_db'):
		g.sqlite_db = connect_db()
	return g.sqlite_db


@app.teardown_appcontext
def close_db(error):
	"""Closes the database again at the end of the request."""
	if hasattr(g, 'sqlite_db'):
		g.sqlite_db.close()


####################################################
# route                                            #
####################################################
@app.route('/')
def show_entries():
	db = get_db()
	cur = db.execute('select title, text from entries order by id desc')
	entries = cur.fetchall()
	return render_template('show_entries.html', entries=entries)


@app.route('/add', methods=['POST'])
def add_entry():
	if not session.get('logged_in'):
		abort(401)
	db = get_db()
	db.execute('insert into entries (title, text) values (?, ?)', [request.form['title'], request.form['text']])
	db.commit()
	flash('New entry was successfully posted')
	return redirect(url_for('show_entries'))


@app.route('/login', methods=['GET', 'POST'])
def login():
	print("USERNAME >> " + app.config['USERNAME'])
	print("PASSWORD >> " + app.config['PASSWORD'])
	error = None
	if request.method == 'POST':
		if request.form['username'] != app.config['USERNAME']:
			error = 'Invalid username'
		elif request.form['password'] != app.config['PASSWORD']:
			error = 'Invalid password'
		else:
			session['logged_in'] = True
			flash('You were logged in')
			return redirect(url_for('show_entries'))
	return render_template('login.html', error=error)


@app.route('/logout')
def logout():
	session.pop('logged_in', None)
	flash('You were logged out')
	return redirect(url_for('show_entries'))


####################################################
# and here wego                                    #
####################################################
if __name__ == '__main__':
	init_db()
	app.run()